Greg Knaddison has been contributing to Open Source projects since 1999. A graduate of the University of Pennsylvania’s Wharton School with a degree in Information Systems, Greg’s technology experience spans the gamut from profitability models built with Excel macros to web-based decision engines built on top of Oracle. He has worked for large firms, including Arthur Andersen and Price Waterhouse Coopers, as well as for Azure Solutions and Charter Communications.

After years of building web applications inside the intranets of the world’s telecommunications companies, Greg now creates interactive websites enabling easy publishing and community interaction. Greg (who is known on Drupal.org as "greggles") is an expert in Drupal, Linux, PHP, Python/Jython and MySQL.

In the Drupal world, Greg is the maintainer or co-maintainer of several modules including

• Pathauto
• Microsummary
• Nofollow List
• Meez Integration
• Token Module
• S5 Presentation Module

Outside of contributed modules, Greg is a member of the Drupal security team, site maintainer for Drupal.org, a Moderator for Groups.Drupal, "disorganizer" of the Denver/Boulder Drupal User's Group and an active patcher for myriad issues.